diff options
Diffstat (limited to 'drivers/misc/mbox.c')
| -rw-r--r-- | drivers/misc/mbox.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/mbox.c b/drivers/misc/mbox.c index b2810718822..5f5a457b277 100644 --- a/drivers/misc/mbox.c +++ b/drivers/misc/mbox.c @@ -348,6 +348,7 @@ static irqreturn_t mbox_irq(int irq, void *arg) if (nbr_occup == 0) goto exit; +redo: if (mbox->cb == NULL) { dev_dbg(&(mbox->pdev->dev), "No receive callback registered, " "leaving %d incoming messages in fifo!\n", nbr_occup); @@ -363,6 +364,11 @@ static irqreturn_t mbox_irq(int irq, void *arg) mbox_value); mbox->cb(mbox_value, mbox->client_data); + nbr_occup = readl(mbox->virtbase_local + MBOX_FIFO_STATUS) & 0x7; + + if (nbr_occup > 0) + goto redo; + exit: dev_dbg(&(mbox->pdev->dev), "Exit mbox IRQ. ri = %d, wi = %d\n", mbox->read_index, mbox->write_index); |